Question: From when and until when was Irving Thalberg married to Norma Shearer?
Paraphrase: Were Irving Thalberg married to Norma Shearer from when and until when?
SPARQL (Wikidata): SELECT ?value1 ?value2 WHERE { wd:Q438472 p:P26 ?s . ?s ps:P26 wd:Q95019 . ?s pq:P580 ?value1 . ?s pq:P582 ?value2 }